Initial attempt at c200 support - you now need both a "firmware.mi4" file (c200 bootloader) and "PP5022.mi4" file (e200 bootloader) to compile. sansapatcher should detect the device type and install the correct bootloader.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14755 a1c6a512-1295-4272-9138-f99709370657

rbutil/sansapatcher/Makefile

@@ -14,30 +14,33 @@ CC = $(CROSS)gcc
 
 all: $(OUTPUT)
 
-sansapatcher: main.c sansapatcher.c sansaio-posix.c parttypes.h bootimg.c
+sansapatcher: main.c sansapatcher.c sansaio-posix.c parttypes.h bootimg_c200.c bootimg_e200.c
-	gcc $(CFLAGS) -o sansapatcher main.c sansapatcher.c sansaio-posix.c bootimg.c
+	gcc $(CFLAGS) -o sansapatcher main.c sansapatcher.c sansaio-posix.c bootimg_c200.c bootimg_e200.c
 	strip sansapatcher
 
-sansapatcher.exe: main.c sansapatcher.c sansaio-win32.c parttypes.h bootimg.c
+sansapatcher.exe: main.c sansapatcher.c sansaio-win32.c parttypes.h bootimg_c200.c bootimg_e200.c
-	$(CC) $(CFLAGS) -o sansapatcher.exe main.c sansapatcher.c sansaio-win32.c bootimg.c
+	$(CC) $(CFLAGS) -o sansapatcher.exe main.c sansapatcher.c sansaio-win32.c bootimg_c200.c bootimg_e200.c
 	$(CROSS)strip sansapatcher.exe
 
 sansapatcher-mac: sansapatcher-i386 sansapatcher-ppc
 	lipo -create sansapatcher-ppc sansapatcher-i386 -output sansapatcher-mac
 
-sansapatcher-i386: main.c sansapatcher.c sansaio-posix.c parttypes.h bootimg.c
+sansapatcher-i386: main.c sansapatcher.c sansaio-posix.c parttypes.h bootimg_c200.c bootimg_e200.c
-	gcc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -o bin/i386/program -arch i386 $(CFLAGS) -o sansapatcher-i386 main.c sansapatcher.c sansaio-posix.c bootimg.c
+	gcc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -o bin/i386/program -arch i386 $(CFLAGS) -o sansapatcher-i386 main.c sansapatcher.c sansaio-posix.c bootimg_c200.c bootimg_e200.c
 	strip sansapatcher-i386
 
-sansapatcher-ppc: main.c sansapatcher.c sansaio-posix.c parttypes.h bootimg.c
+sansapatcher-ppc: main.c sansapatcher.c sansaio-posix.c parttypes.h bootimg_c200.c bootimg_e200.c
-	gcc -arch ppc $(CFLAGS) -o sansapatcher-ppc main.c sansapatcher.c sansaio-posix.c bootimg.c
+	gcc -arch ppc $(CFLAGS) -o sansapatcher-ppc main.c sansapatcher.c sansaio-posix.c bootimg_c200.c bootimg_e200.c
 	strip sansapatcher-ppc
 
 bin2c: bin2c.c
 	$(NATIVECC) $(CFLAGS) -o bin2c bin2c.c
 
-bootimg.c: PP5022.mi4 bin2c
+bootimg_c200.c: firmware.mi4 bin2c
-	./bin2c PP5022.mi4 bootimg
+	./bin2c firmware.mi4 bootimg_c200
+
+bootimg_e200.c: PP5022.mi4 bin2c
+	./bin2c PP5022.mi4 bootimg_e200
 
 clean:
-	rm -f sansapatcher.exe sansapatcher-mac sansapatcher-i386 sansapatcher-ppc sansapatcher bin2c bootimg.c bootimg.h *~
+	rm -f sansapatcher.exe sansapatcher-mac sansapatcher-i386 sansapatcher-ppc sansapatcher bin2c bootimg_c200.c bootimg_c200.h bootimg_e200.c bootimg_e200.h *~

rbutil/sansapatcher/main.c

@@ -73,7 +73,7 @@ void print_usage(void)
     fprintf(stderr,"DISKNO is the number (e.g. 2) Windows has assigned to your sansa's hard disk.\n");
     fprintf(stderr,"The first hard disk in your computer (i.e. C:\\) will be disk 0, the next disk\n");
     fprintf(stderr,"will be disk 1 etc.  sansapatcher will refuse to access a disk unless it\n");
-    fprintf(stderr,"can identify it as being an E200.\n");
+    fprintf(stderr,"can identify it as being an E200 or C200.\n");
     fprintf(stderr,"\n");
 #else
 #if defined(linux) || defined (__linux)
@@ -84,7 +84,7 @@ void print_usage(void)
     fprintf(stderr,"\"device\" is the device node (e.g. /dev/disk1) assigned to your sansa.\n");
 #endif
     fprintf(stderr,"sansapatcher will refuse to access a disk unless it can identify it as being\n");
-    fprintf(stderr,"an E200.\n");
+    fprintf(stderr,"an E200 or C200.\n");
 #endif
 }
 
@@ -154,7 +154,7 @@ int main(int argc, char* argv[])
 
     if ((argc > 1) && (strcmp(argv[1],"--scan")==0)) {
         if (sansa_scan(&sansa) == 0)
-            fprintf(stderr,"[ERR]  No E200s found.\n");
+            fprintf(stderr,"[ERR]  No E200s or C200s found.\n");
         return 0;
     }
 
@@ -168,13 +168,13 @@ int main(int argc, char* argv[])
 #endif
         i = 2;
     } else {
-        /* Autoscan for E200s */
+        /* Autoscan for C200/E200s */
         n = sansa_scan(&sansa);
         if (n==0) {
-            fprintf(stderr,"[ERR]  No E200s found, aborting\n");
+            fprintf(stderr,"[ERR]  No E200s or C200s found, aborting\n");
             fprintf(stderr,"[ERR]  Please connect your sansa and ensure it is in UMS mode\n");
 #if defined(__APPLE__) && defined(__MACH__)
-            fprintf(stderr,"[ERR]  Also ensure that your E200's main partition is not mounted.\n");
+            fprintf(stderr,"[ERR]  Also ensure that your Sansa's main partition is not mounted.\n");
 #elif !defined(__WIN32__)
             if (geteuid()!=0) {
                 fprintf(stderr,"[ERR]  You may also need to run sansapatcher as root.\n");
@@ -182,8 +182,8 @@ int main(int argc, char* argv[])
 #endif
             fprintf(stderr,"[ERR]  Please refer to the Rockbox manual if you continue to have problems.\n");
         } else if (n > 1) {
-            fprintf(stderr,"[ERR]  %d E200s found, aborting\n",n);
+            fprintf(stderr,"[ERR]  %d Sansas found, aborting\n",n);
-            fprintf(stderr,"[ERR]  Please connect only one E200 and re-run sansapatcher.\n");
+            fprintf(stderr,"[ERR]  Please connect only one Sansa and re-run sansapatcher.\n");
         }
 
         if (n != 1) {
@@ -253,12 +253,14 @@ int main(int argc, char* argv[])
 
     display_partinfo(&sansa);
 
-    i = is_e200(&sansa);
+    i = is_sansa(&sansa);
     if (i < 0) {
-        fprintf(stderr,"[ERR]  Disk is not an E200 (%d), aborting.\n",i);
+        fprintf(stderr,"[ERR]  Disk is not an E200 or C200 (%d), aborting.\n",i);
         return 3;
     }
 
+    fprintf(stderr,"[INFO] Sansa %s detected\n",sansa.targetname);
+
     if (sansa.hasoldbootloader) {
         printf("[ERR]  ************************************************************************\n");
         printf("[ERR]  *** OLD ROCKBOX INSTALLATION DETECTED, ABORTING.\n");

rbutil/sansapatcher/sansaio.h

@@ -59,6 +59,7 @@ struct sansa_t {
     int sector_size;
     struct sansa_partinfo_t pinfo[4];
     int hasoldbootloader;
+    char* targetname; /* "e200" or "c200" */
     loff_t start;  /* Offset in bytes of firmware partition from start of disk */
 };
 

rbutil/sansapatcher/sansapatcher.c

@@ -30,7 +30,8 @@
 #include "sansapatcher.h"
 
 #ifndef RBUTIL
-    #include "bootimg.h"
+    #include "bootimg_c200.h"
+    #include "bootimg_e200.h"
 #endif
 /* The offset of the MI4 image header in the firmware partition */
 #define PPMI_OFFSET 0x80000
@@ -121,6 +122,60 @@ int sansa_read_partinfo(struct sansa_t* sansa, int silent)
     return 0;
 }
 
+/* NOTE: memmem implementation copied from glibc-2.2.4 - it's a GNU
+   extension and is not universally.  In addition, early versions of
+   memmem had a serious bug - the meaning of needle and haystack were
+   reversed. */
+
+/* Copyright (C) 1991,92,93,94,96,97,98,2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Return the first occurrence of NEEDLE in HAYSTACK.  */
+static void *
+sansa_memmem (haystack, haystack_len, needle, needle_len)
+     const void *haystack;
+     size_t haystack_len;
+     const void *needle;
+     size_t needle_len;
+{
+  const char *begin;
+  const char *const last_possible
+    = (const char *) haystack + haystack_len - needle_len;
+
+  if (needle_len == 0)
+    /* The first occurrence of the empty string is deemed to occur at
+       the beginning of the string.  */
+    return (void *) haystack;
+
+  /* Sanity check, otherwise the loop might search through the whole
+     memory.  */
+  if (__builtin_expect (haystack_len < needle_len, 0))
+    return NULL;
+
+  for (begin = (const char *) haystack; begin <= last_possible; ++begin)
+    if (begin[0] == ((const char *) needle)[0] &&
+	!memcmp ((const void *) &begin[1],
+		 (const void *) ((const char *) needle + 1),
+		 needle_len - 1))
+      return (void *) begin;
+
+  return NULL;
+}
 
 /*
  * CRC32 implementation taken from:
@@ -191,7 +246,7 @@ static void chksum_crc32gentab (void)
 }
 
 /* Known keys for Sansa E200 and C200 firmwares: */
-#define NUM_KEYS (sizeof(keys)/sizeof(keys[0]))
+#define NUM_KEYS ((int)(sizeof(keys)/sizeof(keys[0])))
 static uint32_t keys[][4] = {
     { 0xe494e96e, 0x3ee32966, 0x6f48512b, 0xa93fbb42 }, /* "sansa" */
     { 0xd7b10538, 0xc662945b, 0x1b3fce68, 0xf389c0e6 }, /* "sansa_gh" */
@@ -328,10 +383,11 @@ static int sansa_seek_and_read(struct sansa_t* sansa, loff_t pos, unsigned char*
    5) The "PPMI" string appears at offset PPMI_OFFSET in the 2nd partition.
 */
 
-int is_e200(struct sansa_t* sansa)
+int is_sansa(struct sansa_t* sansa)
 {
     struct mi4header_t mi4header;
     int ppmi_length;
+    int ppbl_length;
 
     /* Check partition layout */
 
@@ -354,10 +410,31 @@ int is_e200(struct sansa_t* sansa)
         /* No bootloader header, abort */
         return -4;
     }
+    ppbl_length = (le2int(sectorbuf+4) + 0x1ff) & ~0x1ff;
 
+    /* Sanity/safety check - the bootloader can't be larger than PPMI_OFFSET */
+    if (ppbl_length > PPMI_OFFSET)
+    {
+        return -5;
+    }
+
+    /* Load Sansa bootloader and check for "Sansa C200" magic string */
+    if (sansa_seek_and_read(sansa, sansa->start + 0x200, sectorbuf, ppbl_length) < 0) {
+        fprintf(stderr,"[ERR]  Seek and read to 0x%08llx in is_sansa failed.\n",
+                       sansa->start+0x200);
+        return -6;
+    }
+    if (sansa_memmem(sectorbuf, ppbl_length, "Sansa C200", 10) != NULL) {
+        /* C200 */
+        sansa->targetname="c200";
+    } else {
+        /* E200 */
+        sansa->targetname="e200";
+    }
+    
     /* Check Main firmware header */
     if (sansa_seek_and_read(sansa, sansa->start+PPMI_OFFSET, sectorbuf, 0x200) < 0) {
-        fprintf(stderr,"[ERR]  Seek to 0x%08llx in is_e200 failed.\n",
+        fprintf(stderr,"[ERR]  Seek to 0x%08llx in is_sansa failed.\n",
                        sansa->start+PPMI_OFFSET);
         return -5;
     }
@@ -369,7 +446,7 @@ int is_e200(struct sansa_t* sansa)
 
     /* Check main mi4 file header */
     if (sansa_seek_and_read(sansa, sansa->start+PPMI_OFFSET+0x200, sectorbuf, 0x200) < 0) {
-        fprintf(stderr,"[ERR]  Seek to 0x%08llx in is_e200 failed.\n",
+        fprintf(stderr,"[ERR]  Seek to 0x%08llx in is_sansa failed.\n",
                        sansa->start+PPMI_OFFSET+0x200);
         return -5;
     }
@@ -435,7 +512,7 @@ int sansa_scan(struct sansa_t* sansa)
              continue;
          }
 
-         if (is_e200(sansa) < 0) {
+         if (is_sansa(sansa) < 0) {
              continue;
          }
 
@@ -602,7 +679,11 @@ int sansa_add_bootloader(struct sansa_t* sansa, char* filename, int type)
         bl_length = filesize(infile);
     } else {
         #ifndef RBUTIL
-        bl_length = LEN_bootimg;
+        if (strcmp(sansa->targetname,"c200") == 0) {
+            bl_length = LEN_bootimg_c200;
+        } else {
+            bl_length = LEN_bootimg_e200;
+        }
         #endif
     }
 
@@ -629,7 +710,11 @@ int sansa_add_bootloader(struct sansa_t* sansa, char* filename, int type)
         }
     } else {
         #ifndef RBUTIL
-        memcpy(sectorbuf+0x200,bootimg,LEN_bootimg);
+        if (strcmp(sansa->targetname,"c200") == 0) {
+            memcpy(sectorbuf+0x200,bootimg_c200,LEN_bootimg_c200);
+        } else {
+            memcpy(sectorbuf+0x200,bootimg_e200,LEN_bootimg_e200);
+        }
         #endif
     }
 

rbutil/sansapatcher/sansapatcher.h

@@ -31,7 +31,7 @@ extern unsigned char* sectorbuf;
 #define FILETYPE_INTERNAL 1
 
 int sansa_read_partinfo(struct sansa_t* sansa, int silent);
-int is_e200(struct sansa_t* sansa);
+int is_sansa(struct sansa_t* sansa);
 int sansa_scan(struct sansa_t* sansa);
 int sansa_read_firmware(struct sansa_t* sansa, char* filename);
 int sansa_add_bootloader(struct sansa_t* sansa, char* filename, int type);